<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>math对象案例</title>
    <script>
        var mymath = {
            PI: 3.141592654,
            max: function() {
                var max = arguments[0]
                for (var i = 1;i < arguments.length;i++) {
                    if(arguments[i] > max) {
                        max = arguments[i]
                    }
                }
                return max
            },
            min: function() {
                var min = arguments[0]
                for (var i = 1;i < arguments.length;i++) {
                    if(arguments[i] < min) {
                        min = arguments[i]
                    }
                }
                return min
            }
        }
        console.log(mymath.PI);
        console.log(mymath.max(1,4,2,5,7));
        console.log(mymath.min(1,4,2,5,7));
    </script>
</head>
<body>
    
</body>
</html>